firmware for my Touchscreen E-Paper Input Module for Framework Laptop 16
eepy: add GetTimeMicros syscall
+25
-1
+16
eepy-sys/src/misc.rs
+16
eepy-sys/src/misc.rs
···
11
11
pub enum MiscSyscall {
12
12
GetSerial = 0,
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13
LogMessage = 1,
14
+
GetTimeMicros = 2,
14
15
}
15
16
16
17
#[repr(usize)]
···
87
88
88
89
pub fn error(message: &str) {
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90
log(message, LogLevel::Error);
91
+
}
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+
93
+
pub fn get_time_micros() -> u64 {
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+
let mut low_word: u32;
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+
let mut high_word: u32;
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+
97
+
unsafe {
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+
syscall!(
99
+
SyscallNumber::Misc,
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+
out high_word in MiscSyscall::GetTimeMicros,
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+
out low_word,
102
+
)
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+
}
104
+
105
+
((high_word as u64) << 32) | low_word as u64
90
106
}
+9
-1
eepy/src/syscall.rs
+9
-1
eepy/src/syscall.rs
···
93
93
use defmt::{debug, error, info, trace, warn};
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94
use eepy_sys::header::{SLOT_SIZE, XIP_BASE};
95
95
use eepy_sys::misc::{LogLevel, MiscSyscall};
96
-
use crate::SERIAL_NUMBER;
96
+
use fw16_epd_bsp::pac::Peripherals;
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+
use crate::{SERIAL_NUMBER};
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98
use super::StackFrame;
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pub(super) fn handle_misc(stack_values: &mut StackFrame) {
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101
match MiscSyscall::from_repr(stack_values.r0) {
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102
Some(MiscSyscall::GetSerial) => handle_get_serial(stack_values),
102
103
Some(MiscSyscall::LogMessage) => handle_log_message(stack_values),
104
+
Some(MiscSyscall::GetTimeMicros) => handle_get_time_micros(stack_values),
103
105
None => panic!("illegal syscall"),
104
106
}
105
107
}
···
125
127
LogLevel::Warn => warn!("[PROGRAM:{}] {}", slot_n, s),
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128
LogLevel::Error => error!("[PROGRAM:{}] {}", slot_n, s),
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129
}
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+
}
131
+
132
+
fn handle_get_time_micros(stack_values: &mut StackFrame) {
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+
let timer = unsafe { Peripherals::steal() }.TIMER;
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+
stack_values.r1 = timer.timelr().read().bits() as usize;
135
+
stack_values.r0 = timer.timehr().read().bits() as usize;
128
136
}
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137
}
130
138